<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>404 Not Found</title>
   <style>
    body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    text-align: center;
}

h1 {
    font-size: 5em;
}

h2 {
    font-size: 2.5em;
}

p {
    font-size: 1.2em;
}

.home-link {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #007BFF;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.home-link:hover {
    background-color: #0056b3;
}
    </style>
</head>
<body>
    <div class="container">
        <h1>404</h1>
        <h2>页面访问失败</h2>
        <p>此资源已被管理员删除或请检查url是否正确！</p>
    </div>
    <script>
window.onload = function() {
    var container = document.querySelector('.container');
    container.style.opacity = 0;
    setTimeout(function() {
        container.style.opacity = 1;
    }, 100);
}
    </script>
</body>
</html>